Q: How many sq yd in room 21ft by 15ft?

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450

21 ft * 10 ft = 210 sq ft = 19.51 sq metres.

15ft x 20ft= 5yards x 20/3yards 100/3 sq yards =33.3333333333 sq yards

21 ft * 6 ft = 126 sq ft = 11.7 sq metres approx.

21-ft x 3-ft = 63 ft2

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450

21 ft * 10 ft = 210 sq ft = 19.51 sq metres.

15ft x 20ft= 5yards x 20/3yards 100/3 sq yards =33.3333333333 sq yards

15 ft * 15 ft = 225 sq ft = 20.903184 sq metres15 ft * 15 ft = 225 sq ft = 20.903184 sq metres

15ft *12ft = 180 sq ft = 16.72 sq metres.

22ft * 15ft = 330 sq ft = 30.658 sq metres

21 ft * 6 ft = 126 sq ft = 11.7 sq metres approx.

450 sq. ft.

21-ft x 3-ft = 63 ft2

length of the room times the width of the room. a 25'4" x15'6" room would be 392.666 sq foot, so just call it 394

240 square feet= 15 ft x 16 ft= 240 sq ft

multiply: 17 ft x 15 ft = 255 sq. ft.